87 #define PF_TO_X(pf, X)		container_of(pf, X, file)  argument
89 #define PF_TO_PPP(pf)		PF_TO_X(pf, struct ppp)  argument
90 #define PF_TO_CHANNEL(pf)	PF_TO_X(pf, struct channel)  argument
219 static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,
244 static void init_ppp_file(struct ppp_file *pf, int kind);
352 	struct ppp_file *pf = file->private_data;  in ppp_release()  local
355 	if (pf) {  in ppp_release()
357 		if (pf->kind == INTERFACE) {  in ppp_release()
358 			ppp = PF_TO_PPP(pf);  in ppp_release()
362 		if (atomic_dec_and_test(&pf->refcnt)) {  in ppp_release()
363 			switch (pf->kind) {  in ppp_release()
365 				ppp_destroy_interface(PF_TO_PPP(pf));  in ppp_release()
368 				ppp_destroy_channel(PF_TO_CHANNEL(pf));  in ppp_release()
379 	struct ppp_file *pf = file->private_data;  in ppp_read()  local
386 	if (!pf)  in ppp_read()
388 	add_wait_queue(&pf->rwait, &wait);  in ppp_read()
391 		skb = skb_dequeue(&pf->rq);  in ppp_read()
395 		if (pf->dead)  in ppp_read()
397 		if (pf->kind == INTERFACE) {  in ppp_read()
403 			struct ppp *ppp = PF_TO_PPP(pf);  in ppp_read()
417 	remove_wait_queue(&pf->rwait, &wait);  in ppp_read()
439 	struct ppp_file *pf = file->private_data;  in ppp_write()  local
443 	if (!pf)  in ppp_write()
446 	skb = alloc_skb(count + pf->hdrlen, GFP_KERNEL);  in ppp_write()
449 	skb_reserve(skb, pf->hdrlen);  in ppp_write()
456 	skb_queue_tail(&pf->xq, skb);  in ppp_write()
458 	switch (pf->kind) {  in ppp_write()
460 		ppp_xmit_process(PF_TO_PPP(pf));  in ppp_write()
463 		ppp_channel_push(PF_TO_CHANNEL(pf));  in ppp_write()
476 	struct ppp_file *pf = file->private_data;  in ppp_poll()  local
479 	if (!pf)  in ppp_poll()
481 	poll_wait(file, &pf->rwait, wait);  in ppp_poll()
483 	if (skb_peek(&pf->rq))  in ppp_poll()
485 	if (pf->dead)  in ppp_poll()
487 	else if (pf->kind == INTERFACE) {  in ppp_poll()
489 		struct ppp *ppp = PF_TO_PPP(pf);  in ppp_poll()
536 	struct ppp_file *pf = file->private_data;  in ppp_ioctl()  local
546 	if (!pf)  in ppp_ioctl()
547 		return ppp_unattached_ioctl(pf, file, cmd, arg);  in ppp_ioctl()
563 		if (pf->kind == INTERFACE) {  in ppp_ioctl()
564 			ppp = PF_TO_PPP(pf);  in ppp_ioctl()
578 	if (pf->kind == CHANNEL) {  in ppp_ioctl()
583 		pch = PF_TO_CHANNEL(pf);  in ppp_ioctl()
608 	if (pf->kind != INTERFACE) {  in ppp_ioctl()
615 	ppp = PF_TO_PPP(pf);  in ppp_ioctl()
766 static int ppp_unattached_ioctl(struct ppp_file *pf, struct file *file,  in ppp_unattached_ioctl()  argument
2480 init_ppp_file(struct ppp_file *pf, int kind)  in init_ppp_file()  argument
2482 	pf->kind = kind;  in init_ppp_file()
2483 	skb_queue_head_init(&pf->xq);  in init_ppp_file()
2484 	skb_queue_head_init(&pf->rq);  in init_ppp_file()
2485 	atomic_set(&pf->refcnt, 1);  in init_ppp_file()
2486 	init_waitqueue_head(&pf->rwait);  in init_ppp_file()